870222182449 has 9 divisors (see below), whose sum is σ = 909725391673. Its totient is φ = 832365912532.

The previous prime is 870222182429. The next prime is 870222182483. The reversal of 870222182449 is 944281222078.

The square root of 870222182449 is 932857.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 870222182449 - 2¹³ = 870222174257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870222182429) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21435432 + ... + 21475990.

Almost surely, 2^870222182449 is an apocalyptic number.

870222182449 is the 932857-th square number.

870222182449 is the 466429-th centered octagonal number.

It is an amenable number.

870222182449 is a deficient number, since it is larger than the sum of its proper divisors (39503209224).

870222182449 is an frugal number, since it uses more digits than its factorization.

870222182449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81164 (or 40582 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

Multiplying 870222182449 by its sum of digits (49), we get a square (42640886940001 = 6529999²).

The spelling of 870222182449 in words is "eight hundred seventy billion, two hundred twenty-two million, one hundred eighty-two thousand, four hundred forty-nine".